(PhysOrg.com) -- Researchers at the National Institute of Standards and Technology (NIST) have created a tunable superconducting circuit on a chip that can place a single microwave photon (particle of light) in two frequencies, or colors, at the same time.
Read More »Tag Archives: standards
Feed SubscriptionMechanical micro-drum cooled to quantum ground state
Showcasing new tools for widespread development of quantum circuits made of mechanical parts, scientists from the National Institute of Standards and Technology have demonstrated a flexible, broadly usable technique for steadily calming the vibrations of an engineered mechanical object down to the quantum "ground state," the lowest possible energy level.
Read More »Key ingredient: Change in material boosts prospects of ultrafast single-photon detector
By swapping one superconducting material for another, researchers at the National Institute of Standards and Technology (NIST) have found a practical way to boost the efficiency of the world's fastest single-photon detector, while also extending light sensitivity to longer wavelengths. The new tungsten-silicon alloy could make the ultrafast detectors more practical for use in quantum communications and computing systems, experiments testing the nature of reality, and emerging applications such as remote sensing.
Read More »A quiet phase: NIST optical tools produce ultra-low-noise microwave signals
By combining advanced laser technologies in a new way, physicists at the National Institute of Standards and Technology (NIST) have generated microwave signals that are more pure and stable than those from conventional electronic sources. The apparatus could improve signal stability and resolution in radar, communications and navigation systems, and certain types of atomic clocks.
Read More »Fuel Economy Standards Necessary But Not Sufficient to Cut Oil Demand
Simply forcing the U.S. automotive industry to comply with tougher fuel economy standards won't be enough to create substantial cuts in either greenhouse gas emissions or oil use, says a new report from the National Research Council
Read More »Cosmic Microwaves and Alloys Earn Kyoto Prizes
The Inamori Foundation announced this year's Kyoto Prizes on June 24. It awarded the Basic Sciences prize to astrophysicist Rashid Sunyaev of the Max Planck Institute for Astrophysics and the Advanced Technology prize to materials scientist John W. Cahn of the U.S.
Read More »Compact high-temperature superconducting cable wins ‘R&D 100’ award
A method developed by researchers at the National Institute of Standards and Technology (NIST) and the University of Colorado at Boulder for making thin, flexible, high-temperature superconducting (HTS) cables has won a 2011 R&D 100 Award from R&D Magazine. The prestigious annual awards salute the 100 most technologically significant products introduced into the marketplace over the past year.
Read More »Compact high-temperature superconducting cable wins ‘R&D 100’ award
A method developed by researchers at the National Institute of Standards and Technology (NIST) and the University of Colorado at Boulder for making thin, flexible, high-temperature superconducting (HTS) cables has won a 2011 R&D 100 Award from R&D Magazine. The prestigious annual awards salute the 100 most technologically significant products introduced into the marketplace over the past year.
Read More »NIST tunes ‘metasurface’ with fluid in new concept for sensing and chemistry
(PhysOrg.com) -- Like an opera singer hitting a note that shatters a glass, a signal at a particular resonant frequency can concentrate energy in a material and change its properties. And as with 18th century "musical glasses," adding a little water can change the critical pitch. Echoing both phenomena, researchers at the National Institute of Standards and Technology (NIST) have demonstrated a unique fluid-tuned "metasurface," a concept that may be useful in biomedical sensors and microwave-assisted chemistry.
Read More »Drive test: NIST Super-stable laser shines in minivan experiment
(PhysOrg.com) -- In a step toward taking the most advanced atomic clocks on the road, physicists at the National Institute of Standards and Technology (NIST) have designed and demonstrated a super-stable laser operating in a cramped, vibrating locationa minivan.
Read More »Understanding how glasses ‘relax’ provides some relief for manufacturers
(PhysOrg.com) -- Researchers at the National Institute of Standards and Technology and Wesleyan University have used computer simulations to gain basic insights into a fundamental problem in material science related to glass-forming materials, offering a precise mathematical and physical description* of the way temperature affects the rate of flow in this broad class of materials -- a long-standing goal.
Read More »NIST ‘noise thermometry’ system measures Boltzmann constant
(PhysOrg.com) -- Researchers at the National Institute of Standards and Technology (NIST) have for the first time used an apparatus that relies on the "noise" of jiggling electrons to make highly accurate measurements of the Boltzmann constant, an important value for many scientific calculations. The technique is simpler and more compact than other methods for measuring the constant and could advance international efforts to revamp the worlds scientific measurement system.
Read More »The first non-trivial atom circuit: Progress towards an atom SQUID
(PhysOrg.com) -- Researchers from the National Institute of Standards and Technology and the University of Maryland have created the first nontrivial "atom circuit," a donut-shaped loop of ultracold gas atoms circulating in a current analogous to a ring of electrons in a superconducting wire. The circuit is "nontrivial" because it includes a circuit elementan adjustable barrier that controls the flow of atom current to specific allowed values. The newly published work was done at the Joint Quantum Institute, a NIST/UM collaboration.
Read More »Physicists demonstrate coveted ‘spin-orbit coupling’ in atomic gases
(PhysOrg.com) -- Physicists at the Joint Quantum Institute (JQI), a collaboration of the National Institute of Standards and Technology and the University of Maryland-College Park, have for the first time caused a gas of atoms to exhibit an important quantum phenomenon known as spin-orbit coupling. Their technique opens new possibilities for studying and better understanding fundamental physics and has potential applications to quantum computing, next-generation "spintronics" devices and even "atomtronic" devices built from ultracold atoms.
Read More »Inc. 5000 Update: Brewing for Dollars
Greg Koch took his first sip of a craft-brewed beer in 1987. Nine years later, he co-founded, with Steve Wagner, Stone Brewing in Escondido, California
Read More »